Networking or PC problem?

Current setup
3 PC's, one laptop all connected directly to a Linksys WRT-54G v3 with the latest firmware.

We mainly only use the 3 PC's in the house but one of them just ALWAYS gets disconnected from the network and it takes forever to get it up and working again. Sometime I can't even get it working by disconnecting power to the modem, router, and all of the computers, and then powering them all back up in the right order (modem, router, PC). I go to the computer that isn't working and it can't even view the network at all (as in shared drives, etc) so what gives?

Since you have a v3 of the WRT54G, try flashing it with 3rd party firmware like DD-WRT v23 (www.dd-wrt.com), OpenWRT RC5 (openwrt.org) or even HyperWRT 15b2 (www.thibor.co.uk). HyperWRT would be the easiest to use and configure, DD-WRT would be next, and then OpenWRT has a graphical interface, but it's still mostly Command Line driven.

What OSs are the three running?
Is there anything specific on that one that's not on the others (games or torrents, maybe)?
Is it used exclusively by one person?
Are you unplugging the router to get the PC back because that's all you know how to do or because that's the only way it comes back?
When it's "gone" what is its IP address?
Do you know how to issue the DOS commands to get it to request a new address?
Do you know how to look up the addressess assigned by the router?

What OSs are the three running?
Is there anything specific on that one that's not on the others (games or torrents, maybe)?
Is it used exclusively by one person?
Are you unplugging the router to get the PC back because that's all you know how to do or because that's the only way it comes back?
When it's "gone" what is its IP address?
Do you know how to issue the DOS commands to get it to request a new address?
Do you know how to look up the addressess assigned by the router?

Click to expand...

XP Home and 2 and XP Pro Corp on mine
Mostly DVD rips and Excel shit.
One person uses it
Unplugging the router/modem is usually the only way I could get it back, and now that doesn't even work anymore. It'll just come on by itself eventually.
Not sure.
You mean like release/renew? Yes.
No

It could be the router. I have the same one and spent like 4 hours one night trying to get it back up. It hasn't necesarilly gone bad but I have had and know many people who have the same issues with this model.